2/2÷4/7= 2.4÷2/5= 14/15×3/8= 12÷4/7= 8-4/9=
问题描述:
2/2÷4/7= 2.4÷2/5= 14/15×3/8= 12÷4/7= 8-4/9=
答
4/7620/77/20217又5/9
2/2÷4/7= 2.4÷2/5= 14/15×3/8= 12÷4/7= 8-4/9=
4/7620/77/20217又5/9